here's some good paint actually better than Interlux
 
http://www.duckworksbbs.com/supplies...rlpu/index.htm
 
 
WR-LPU Linear Polyurethane Topcoat
WR-LPU Topcoat is a two-part linear polyurethane coating specifically formulated for maximum performance and ease of use. Available in 12 standard colors as well as clear satin and high gloss. When cured it is moisture, solvent and fuel resistant. WR-LPU contains UV absorbers and will not yellow or lose gloss for years, depending on exposure. WR-LPU product kit contains a can of paint and a bottle of crosslinking material. The paint by itself cures to a very high-quality coating, without the crosslinker. However, the addition of the crosslinking material produces a tougher and more durable film. It will be more chemical and fuel resistant, have better gloss retention and generally last longer than a film cured without the crosslinker.
 Package Sizes:
Package Sizes:
Five Ounces
Quart 
Gallon 
Available Colors: 
Orcas White, Decatur Black, Whidbey White, San Juan Tan, Bainbridge White, Vashon Gray, Camano Red, Gallon kit Mercer Green, Lopez Blue, Shaw Blue, Sinclair Yellow, Fox Orange, Clear Gloss,
Recommended Uses:
Use WR-LPU for both interior and exterior surfaces. It is not intended for continuous below waterline use. Used as a clear finish without the primer, it can beautify and protect wood from discoloration and degradation.
Comments:
For health and safety information concerning this product, please refer to the 
Material Safety Data Sheet (MSDS) for this product.